Different people have different needs for PDAF: owners of Four Thirds SLR lenses like the 14-54, 50-200, 12-60 want them to function "normally" including AF: beyond that, high frame-rate tracking AF matters a lot to some, but little or at all to others like me.

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Smaller lenses, better in low light, more telephoto reach:you can have any *two* at one time.